# Instructions for ALM

ALM = Autor, David H., Frank Levy, and Richard J. Murnane. 2003. "The Skill Content of Recent Technological Change: An Empirical Exploration." Quarterly Journal of Economics 118 (4): 1279-1334. Accessed November 2020. https://economics.mit.edu/people/faculty/david-h-autor/data-archive

This part of the replication package follows after the assembly and reproduces and compares the results using ALM with our own classification.


### Files in order of execution

-0_uspto_patents_extract.do | Extracts US-Patents, their C/IPC codes and classification | Requires patstat. Skipped if not present.
-1_map_ipc4_current_sic.do | Applies different crosswalks to match patents to current SIC codes.
-2_map_flow_make_sic.do | The flow table is at NAICS level. this maps it to sic4.
-3_map_ipc4_sic_using.do | Matches sic4 to current SIC and aggregates codes.
-4_map_sic4_ind6090.do | Maps SIC4 to consistent industries of ALM (ind6090).
-5_map_ipc4_sic_make.do | Similar to 2, but different approach.
-6_prepare_employment_data.do | Loads BEA and NBER employment, VA and compensation.
-7_count_patents_by_industry.do | Does what the name suggests.
-8_count_by_LZ_naics_mapping.do | Similar to 8, but using LZ's mapping.
-9_prep_ind6090_ALM_regression.do | Combines our data with ALM data and NBER.
-10_prep_beaind_regressions.do | Brings together ALM, our data and BEA data.
-11_capital_purchases.do | Assembles capital purchases per industry by the BEA for weighting in table A9.
